Sonic: Free Large Drink or Slush w/ Purchase January 22, 2020ChristinaLeave a CommentContent may be sponsored or contain affiliate links. View full disclosure.This deal has expired. Sonic Drive In is offering a FREE Large Drink or Slush w/ purchase when you order on the Sonic App and use the code PUPPYBOWL. Code can only be used one time through February 3, 2020. Get the Sonic App Share2TweetPinShare
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